Window-screen.



' m5' Patented Nov. 16, 1915- 2 EEEEEEEEEEEE I' l. B. TOTH.

WINDOW SCREEN.

APPLICATION FILED APR. I2, I9I5 2 SHEETShSHEET 2.

' wj/nesses:

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Patented Nov. 16, 1915. f

1f fr a l r .IOHN Is. TOTH, OF CHICAGO, ILLINOIS, AssreNoia OF ONE-HALF To JOHN HADU, on

` CHICAGO, ILLINOIS.

WINDOW-SCREEN.

Specication of Letters Patent.

Patented Nov. 16, 1915.

Application led April 12, 1915. Serial No. 20,857.

To all ywhom t my concern:

Be it known that I, JoHN B. TOTH, a citi zen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Window- Screens, of which the following is a specilication.

My inventio-n relates to window-screens, and more specifically to that class thereof generally known as roller window-screens wherein a flexible screen is provided which is mounted on a spring controlled drum, said screen being connected with the sash of the window in conjunction with which the same is employed, so' that when the sash is moved to open position. the screen will be automatically unwound from the drum carrying the same to close the opening resulting from the movement of the sash.

rlhe object of mv invention is the production of a screen of the character mentioned which will be of durable and eco-nomical construction and efficient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying dra-wings forming a part of this Specification, and in which,

Figure 1 is a front elevation of a window equipped with a screen embodying my invention, Fig. 2 is a section taken on line '.rof Fig. 1, and Figs. 3 and 4 are enlarged sections taken on lines ?/-3/ and e-a respectively of Fig. 1. l

The preferred forni of construction, as ilustrated in the drawings, comprises a housing 1 which is adapted to be mounted upon the inner sill 2 of the window-frame 3 in conjunction with which the screen is employed. Said housing 1 comprises a sheet metal tubularly formed body 4 at the ends of which are arranged wooden end pieces 5. Said housing is rigidly secured in position by means of angular members 4 provided at the upper side of the wall 4 at the ends thereof. said members 4 being secured to the inner sides of the vertical bars of the window-frame.

Arranged centrally in the housing 1 is a shaft 6 the ends of which are mounted in the end pieces 5 and flattened so as to effect 1ocking 'of said shaft against rotary movement. Rotatably mounted upon the shaft 6 is a drum 7 one end of which is closed by an end piece 8 secured in position by soldering, the opposite end of Said drum being closed b an end piece 9, secured in position by screws 10 and coiiperating nuts, said screws passing through inwardly projecting ears 11 formed at the periphery of the member 9.

Mounted upon the drum 7 is a flexible screen 12 one end of which is arranged in an elongated longitudinally extending slot formed in the periphery of said drum through the formation of a channel 13, as

clearly shown in Fig. 3. The' end of said screen is securely locked to the'drum by means of a wedge 14 which is driven into the slot engaged by said screen end, as shown. Provided at the opposite or outer end of the screen 12 is a channel strip 15 which serves to reinforce this end of the screen. The strip 15 is clamped to the end of the screen by means of split pins 16 which pass therethrough, the bifurcated ends of. said pins being clenched to secure the same in position. Provided at said end of said screen are also angular connecting members 17 which are secured to the strip 15 by certain of the pins 16. The members 17 are adapted to be fastened in position by any of the pins 16, so that in the attachment of the members 17 to the member 15, said members 1 7 may be positioned at any points desired where pins 16 are located. The outer ends of the members 17 are pointed or knifeedged so as to engage with the upper edge of the lower bar 18 of the lower sash of the window so that upon upward movement of said sash, the screen 12 will be unwound so as to traverse the opening formed below the sash. Upon lowering of the Window, the screen 12 will be automatically coiled upon the drum 7 by means of a helical torsional spring 19 mounted upon the shaft 6, one end of Said spring being fixed to said shaft, the other end thereof engaging with the channel 13 of the drum, as shown.

Provided at the sides of the window-frame 3 are channel guides or ways 20 adapted for engagement with the vertical or longitudinal edges of the screen in the unwinding thereof, in order to effectually close the opening traversed by the screen. The channels 20 are exceptionally wide so that the same screen may be used in connection with windows of various widths, it being clear that with this arrangement, in the event of a narrow window, the edges of the screen will overlap considerably with the sides of said channels, and in the event of a wider window, the overlapping of the edges of the `for insertion inany one of a plurality of spaced openings 22 formed in the guides 20 for engagement with the lower edge of the window-sash, as clearly shown in Fig. 1.

With this arrangement, no matter how great the tension of the spring coperating with the screen drum, the window-sash cannot be drawn to closed position thereby, since the v pin 21 will serve as a positive stop.

The `construction described is extremely simple and economical, and the same is so constructed as to permit of use at the upper as well as the lower end of the window. Throughthe loose engagement of the vertical edges ofthe screen with comparatively wide channel guides, the same device is capable of use in connection with windows of various widths, and by means of the stop pin for engagement with the window-sash, provision is made for positively holding thc window in open position Aagainst the infiuence of the spring coperating with the screen drum;

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

The combination with a window-frame having a sash slidably mounted therein, of a spring controlled drum; a exiblc screen having one end attached to said drum and adapted to be coiled thereon; a reinforcing strip at the opposite end of said screen; split pins for attaching said strip to said f. screen end; and means secured to said strip by said pins adapted for engagement with the lower bar of said sash to attach said screen end thereto, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN B. TOTH. Witnesses:

JOSHUA R. H. Po'rrs, HELEN F. LILLIS. 

